Question

15.3 Two equal point charges are separated by a distance of 23 cm. The magnitude of the force that one charge exerts on the other is 18 N. What is the charge?

15.4 A 5 μC charge and a 3 μC charge are separated by some distance. If the magnitude of the force that one charge exerts on the other is 27 N, what is the distance between the two charges?

Answer #1

Two point charges, A and B, are separated by a distance of 19.0
cm . The magnitude of the charge on A is twice that of the charge
on B. If each charge exerts a force of magnitude 46.0 N on the
other, find the magnitudes of the charges.

Two point charges, A and B, are separated by a distance of 23.0
cm23.0 cm . The magnitude of the charge on A is twice that of the
charge on B. If each charge exerts a force of magnitude 48.0 N48.0
N on the other, find the magnitudes of the charges.

Two point charges are separated by 5.6 cm . The attractive force
between them is 24 N . Suppose that the charges attracting each
other have equal magnitude.
Part A
Rearrange Coulomb's law and find the magnitude of each
charge.

Two point charges, -30 μC and +40 μC , are separated by a
distance of 17.0 cm .
a.What is the magnitude of the electric field at a point halfway
between the two charges?

Two point charges of +30.0 μC and -9.00 μC are separated by a
distance of 20.0 cm. What is the intensity of the electric field E
midway between these two charges? A. 18.1x106 N / C, towards
positive charge b. 35.1x106 N / C, towards negative charge c. 0 N /
C d. 18.1x106 N / C, towards negative charge

Two point charges Q1 and Q2 are 2.30 m
apart, and their total charge is 15.4 μC. If the force of repulsion
between them is 0.0990 N, what are magnitudes of the two charges?
Enter the smaller charge in the first box.
Q1 =
Q2 =
If one charge attracts the other with a force of 0.0763N, what
are the magnitudes of the two charges if their total charge is also
15.4 μC? The charges are at a distance of...

Two charges, Q1 and Q2, are separated by
6·cm. The repulsive force between them is 25·N. In each case below,
find the force between them if the original
situation is changed as described.
(a) The magnitude of charge Q1 is reduced to
Q1/5. N
(b) The distance between the charges is reduced to
2·cm. N
(c) The magnitude of charge Q2 is increased to
5Q2 and the distance is increased to
30·cm. N

Define Electric field
A. Two charges of equal magnitude and opposite signs separated
by a distance
B. unit of electric field
C. property of a material that is directly proportional to the
resistance of the material
D. ratio of electric force to charge
E. None of the above
ANSWER:

Two large, parallel, metal plates carry opposite charges of
equal magnitude. They are separated by a distance of 45.0 mm , and
the potential difference between them is 365 V
(A) What is the magnitude of the electric field (assumed to be
uniform) in the region between the plates?
(B) What is the magnitude of the force this field exerts on a
particle with a charge of 2.10 nC ?
(C) Use the results of part (b) to compute the...

Positive point charges q = 7.00 μC and q′= 2.00 μC are moving
relative to an observer at point P, as shown in the figure (Figure
1). The distance d is 0.130 m , v = 4.60×106 m/s , and v′= 9.20×106
m/s . When the two charges are at the locations shown in the
figure, what is the magnitude of the net magnetic field they
produce at point P? What is the direction of the net magnetic field
at...

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